ninjayoto

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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ninjayoto

#!/usr/bin/env bash
# https://developers.supportbee.com/blog/setting-up-cucumber-to-run-with-Chrome-on-Linux/
# https://gist.github.com/curtismcmullan/7be1a8c1c841a9d8db2c
# http://stackoverflow.com/questions/10792403/how-do-i-get-chrome-working-with-selenium-using-php-webdriver
# http://stackoverflow.com/questions/26133486/how-to-specify-binary-path-for-remote-chromedriver-in-codeception
# http://stackoverflow.com/questions/40262682/how-to-run-selenium-3-x-with-chrome-driver-through-terminal
# http://askubuntu.com/questions/760085/how-do-you-install-google-chrome-on-ubuntu-16-04

# Versions
CHROME_DRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`

ninjayoto

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.

ninjayoto

General Tip

"The trick is to catch exceptions at the proper layer, where your program can either meaningfully recover from the exception and continue without causing further errors, or provide the user with specific information, including instructions on how to recover from the error. When it is not practical for a method to do either of these, simply let the exception go so it can be caught later on and handled at the appropriate level."

Resources

Advantages of Exceptions
Excellent example of separating error-handling code from program logic

Three Rules for Effective Exception Handling
Longer explanation and case study of exception use, including the basic principles of "throw early" and "catch late". Clear and thorough.

ninjayoto

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;

public class Exceptions {

    // An exception is an event that occurs during the execution of a program

ninjayoto

import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
import java.util.*;

import static java.time.temporal.TemporalAdjusters.*;

public class Java8DateTimeExamples {

ninjayoto

import com.petebevin.markdown.MarkdownProcessor
import org.xhtmlrenderer.pdf.ITextRenderer
import org.ccil.cowan.tagsoup.Parser
import org.apache.xalan.xsltc.trax.SAX2DOM
import org.xml.sax.InputSource

buildscript{
  repositories {
    mavenCentral()
    maven {

ninjayoto

@Test
public void postMessage()
{
	driver.get("https://csc510-fall16.slack.com/");

	// Wait until page loads and we can see a sign in button.
	WebDriverWait wait = new WebDriverWait(driver, 30);
	wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("signin_btn")));

	// Find email and password fields.

ninjayoto

import os
import sys

# constants, configure to match your environment
HOST = 'http://localhost:9200'
INDEX = 'test'
TYPE = 'attachment'
TMP_FILE_NAME = 'tmp.json'
# for supported formats, see apache tika - http://tika.apache.org/1.4/formats.html
INDEX_FILE_TYPES = ['html','pdf', 'doc', 'docx', 'xls', 'xlsx', 'xml']

ninjayoto

import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.is;

import static org.mockito.Mockito.*;
import static org.mockito.BDDMockito.*;

import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Matcher;